Device for irrigating and pressurizing a cavity

Abstract

The invention concerns a device ( 1 ) for irrigating and pressurizing a body cavity ( 2 ). Said device comprises a circuit consisting of at least one source ( 3 ), wherefrom flows a fluid under pressure, connected to a supply conduit ( 3 ) emerging in its downstream end into the cavity ( 2 ), a discharge conduit ( 20 ) for said fluid exiting from said cavity ( 2 ) and means for regulating ( 30 ) said fluid. Said regulating means ( 30 ) include first pumping means ( 31 ) capable of being temporarily engaged with the supply conduit ( 10 ), second pumping means ( 32 ) engaged with the discharge conduit ( 20 ). The two pumping means ( 31, 32 ) are operated at the same speed and in the same direction when they are engaged with their respective conduits ( 10, 20 ).

1. A device for irrigating and pressurizing an organ cavity, said device comprising:
 at least one source of pressurized fluid; 
 a circuit of pipes formed from the at least one source of pressurized fluid; 
 a supply pipe connected to said circuit of pipes, said supply pipe opening at its downstream end into said cavity; 
 a discharge pipe for said fluid re-emerging from said cavity; and 
 a regulating means for regulating said fluid; said regulating means comprising a first pumping means designed to engage and disengage the supply pipe and a second pumping means designed to engage the discharge pipe, 
 wherein said first pumping means includes a peristaltic pump and means for neutralizing the pumping effect on the supply pipe so that the peristaltic pump does not pump fluid in the supply pipe, said neutralizing means comprising a retractable shoe mobile between a position in engagement with the supply pipe and a position retracted from the supply pipe, 
 and 
 wherein said first and second pumping means are successively arranged in (i) a first position in which said first pumping means is disengaged from the supply pipe and the neutralizing means neutralizes the pumping effect on the supply pipe so that the first pumping means does not pump fluid, and said second pumping means is activated at a first speed and engages the discharge pipe so that the second pumping means pumps fluid, and (ii) a second position in which said first and second pumping means are activated at a same speed higher than the first speed and in the same direction and are both engaged with their respective pipes so that both the first and second pumping means pump fluid. 
 
     
     
       2. The device as claimed in  claim 1 , wherein said regulating means also comprise a bypass pipe placing the pressurized cavity at the same pressure as the said fluid. 
     
     
       3. The device as claimed in  claim 1 , wherein said peristaltic pump constitutes both the first pumping means in cooperation with the supply pipe and the second pumping means in cooperation with the discharge pipe, and said pump is equipped with the neutralizing means to neutralize the pumping effect on the supply pipe. 
     
     
       4. The device as claimed in  claim 1 , wherein the second pumping means another peristaltic pump, and said pumps of the first and second pumping means are connected to one another either mechanically or by an electric shaft. 
     
     
       5. The device as claimed in  claim 1 , wherein the pumping effect applied by the second pumping means to the discharge pipe can be neutralized by uncoupling the second pumping means from the discharge pipe. 
     
     
       6. The device as claimed in  claim 2 , wherein the second pumping means includes another peristaltic pump, and said pumps of the first and second pumping means are connected to one another either mechanically or by an electric shaft. 
     
     
       7. The device as claimed in  claim 1 , wherein said organ cavity is maintained at a constant datum pressure.